Temporal range: Middle Paleocene
Anqingosaurus brevicephalus by avancna-d1zhqcb.jpg
A restoration of Anqingosaurus brevicephalus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Chamaeleonidae (?)
Genus: Anqingosaurus
Hou, 1976
Species: A. brevicephalus
Binomial name
Anqingosaurus brevicephalus
Hou, 1976

Anqingosaurus brevicephalus (also known as Anguingosaurus brevicephalus) is an extinct genus of lizard from the early Middle Paleocene of Anhui, China. A. brevicephalus was originally described as a chameleon, but, not all authorities agree with this. If A. brevicephalus is a chameleon, then Chameleonidae's fossil record extends all the way into the Paleocene. If it is not, then Chameleonidae's fossil record starts in the Early Miocene with Chamaeleo caroliquarti.